EP2281965A2 - Bande de renfort et élément de connexion - Google Patents

Bande de renfort et élément de connexion Download PDF

Info

Publication number: EP2281965A2
Authority: EP; European Patent Office
Prior art keywords: fibre band; coupling device; fibre; wind bracing; building construction
Prior art date: 2009-07-01
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Withdrawn

Application number

EP10167141A

Other languages

German (de)

English (en)

Inventor

Ole Hansen

Arne Beyerholm

Villy Elholm Jakobsen

Jakob Gustavsen Lyck

Karsten Iversen

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

ITW Construction Products ApS

Original Assignee

ITW Construction Products ApS

Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)

2009-07-01

Filing date

2010-06-24

Publication date

2011-02-09

2010-06-24 Application filed by ITW Construction Products ApS filed Critical ITW Construction Products ApS

2011-02-09 Publication of EP2281965A2 publication Critical patent/EP2281965A2/fr

Status Withdrawn legal-status Critical Current

Images

Classifications

- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
- E04C3/00—Structural elongated elements designed for load-supporting
- E04C3/02—Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
- E04C2003/026—Braces

Definitions

the present invention relates to wind bracing systems for building constructions, i.e. to systems which are used for stabilizing the building construction and making it capable of withstanding loads to which it is exposed, in particular loads originating from the wind.
the present invention further relates to a coupling device forming part of the wind bracing system, the coupling device establishing a connection between a stabilizing part of the wind bracing system and the building construction.
Wind bracing systems are often used in buildings with wooden roof structures and rafters. They are applied in order to stabilize various parts of the building construction against various forms of wind induced breaking strain, such as parts of the building construction being displaced relative to each other, or one or more parts of the building construction changing shape, e.g. rafters of the roof construction being pushed over. Wind bracing systems must comprise stabilizing parts which are sufficiently resistant towards stretching to provide the required stability to the building construction, and sufficiently flexible to allow the wind bracing system to absorb the loads applied to the building construction by the wind.
wind bracing systems applied to the roof construction of buildings have been made from steel bands connected to the rafters of the roof construction, and along diagonal directions of the roof construction.
the steel bands are connected to connecting parts by means of bolt and nuts extending through holes formed in the steel band.
the connecting parts are mounted directly on the rafters or other parts of the roof construction.
the steel band is unhandy and heavy, and it is therefore difficult and cumbersome for the construction personnel to position the steel band in the region of the roof construction during construction of the building. Furthermore, the steel band has sharp edges, and there is therefore a risk of the construction personnel cutting their fingers when they handle the steel band. It is therefore desirable to provide an alternative to the steel band which could improve the working environment for the construction personnel, without compromising the stability of the wind bracing system, and thereby the safety requirements of the building.
the invention provides a coupling device for coupling a fibre band to a building construction, said fibre band comprising a bundle of substantially continuous fibres, the coupling device comprising:
the term 'fibre band' should be interpreted to mean a bundle of individual and substantially continuous fibres.
the fibres may be arranged substantially in parallel, in such a manner that the longitudinal directions of the fibres define a length of the fibre band which is significantly longer than the transversal dimensions of the structure, i.e. a band like structure.
the fibre band may be relatively flat, i.e. the cross sectional shape of the fibre band transversally to the length direction may have a size in one direction which is significantly larger than the size of the cross section perpendicularly thereto.
the fibre band has a tape like shape, i.e. it has a shape which resembles the shape of the conventional steel bands used in prior art wind bracing systems.
the fibre band may be somewhat thicker, or even have a substantially circular cross section.
Fibre bands have a weight which is significantly lower than a steel band having identical dimensions and tensile strength. Furthermore, fibre bands can be made without sharp edges, and the risk of personnel cutting their fingers while handling the fibre band is thereby minimised. Finally, fibre materials exist, e.g. carbon fibre, which have appropriate properties with respect to strength, resistance towards stretching and flexibility, thereby making it suitable for use as a stabilizing element for a wind bracing system. Thus, it would be desirable to replace the steel bands of wind bracing systems with fibre bands.
the fibre band comprises a bundle of individual fibres
the fibre band would be torn loose from the building construction as soon as the fibre band is subjected to tensions or loads. Accordingly, it is not possible to immediately replace the steel bands of wind bracing systems with fibre bands. In order to allow this, it is necessary to provide a suitable manner of connecting a fibre band to a building construction.
the term 'building construction' should be interpreted to mean a building or a part of a building. It could, e.g., be a roof construction or a part of a roof construction, e.g. comprising a rafter. Alternatively, it could include other parts of a building, such as wall parts.
the coupling device of the invention is suitable for connecting a fibre band to a building construction.
the coupling device comprises a connecting part and a retaining part.
the connecting part is arranged to be connected to a part of the building construction, e.g. a rafter of a roof construction.
the connecting part may be connected to the building construction by means of screws, bolts, clamps, or any other suitable means which are normally used for connecting parts to building constructions.
the connecting part may also be mounted directly in a groove or a bore formed in a part of the building construction.
the retaining part is arranged to retain an end part of a fibre band.
a fibre band is retained by a retaining part, one end of the fibre band is retained, and the remaining fibre band extends from the coupling device.
An opposite end of the fibre band may, e.g., be retained by a retaining part of another, e.g. identical or similar, coupling device.
the retaining part is arranged to retain the fibre band at least partly by means of friction between the retaining part and the fibre band.
an end part of a fibre band can be arranged relative to the retaining part in such a manner that friction arises between the retaining part and the fibre band. This may, e.g., be due to the retaining part squeezing the fibre band or the fibre band being rolled around the retaining part.
a suitable glue or adhesive may be applied between the retaining part and the fibre band in order to increase the friction.
mechanical means such as screws, bolts, clamps, etc. may be used for fixating the fibre band relative to the retaining part and/or for increasing the friction.
the retaining part is arranged to squeeze the end part of the fibre band.
the fibre band may be retained purely by means of friction. This may, e.g., be the case if the fibre band is rolled around the retaining part or a portion of the retaining part.
the fibre band is retained by the retaining part by means of friction because it allows the bundle of fibres to be attached securely to the retaining part, and thereby, via the coupling device, to a part of a building construction, since the problem of screws slipping along the fibres as described above is avoided.
the coupling device of the invention allows a fibre band, such as a fibre band of carbon fibres, to be coupled to a part of a building construction, thereby allowing such a fibre band to be used as a stabilizing element in a wind bracing system. Accordingly, the total weight of the wind bracing system can be reduced.
a roll of fibre band is much easier to handle than a roll of steel band due to the reduced weight and because the fibre band does not have sharp edges.
the fibre band can therefore easily and with minimal effort be brought to the position of the wind bracing system, e.g. to the region of the roof construction, and be mounted on a relevant building construction as a part of a wind bracing system. Furthermore, this can be done with no or only a small risk of injury to the person installing the wind bracing system. Thus, the disadvantages of the prior art wind bracing systems described above are avoided.
the coupling device may further comprise means for tightening a fibre band being retained by the retaining part.
the coupling device can further be used for tightening a fibre band after it has been coupled to a building construction by means of the coupling device.
a fibre band which is supposed to form a stabilizing element of a wind bracing system may be mounted between two parts of the building construction by means of two coupling devices according to this embodiment of the invention. Subsequently, the fibre band can be tightened by means of the tightening means until it is sufficiently tensioned to provide the required stability to the building construction.
tightening of the fibre band may be achieved by means of separate tightening means, i.e. tightening means which do not form part of the coupling device.
the tightening means may form part of the retaining part.
the retaining part comprises a first part forming part of or being fixed to the connecting part and a second part arranged rotatably relative to the first part.
a fibre band may be rolled around the second part for a number of full turns, e.g. two, three or four full turns. Winding the fibre band onto the second part of the retaining part provides the required friction between the retaining part and the fibre band to retain the fibre band.
rotating the second part a bit further when an opposite end of the fibre band is fixed, e.g. to a part of a building construction, will provide tightening of the fibre band. Accordingly, the tightening mechanism is, in this case, inherently provided by the retaining part.
the fibre band should preferably be rolled around the second part in such a manner that when the coupling device is mounted on a building construction as part of a wind bracing system, the forces pulling the fibre band will tend to increase the friction between the second part and the fibre band, rather than reducing the friction. Thereby the pulling forces ensure that the fibre band remains retained by the coupling device, rather than causing the fibre band to be pulled out of the coupling device.
the second part may have a substantially circular cross section.
a fibre band being rolled around the second part is not subjected to kinks.
a second part having a cross section comprising edges or kinks could be acceptable as long as the edges or kinks are not too sharp.
One criterion could be that the included angles defined by the edges or kinks should not be smaller than 90°.
One example of a non-circular cross section which could be acceptable is a substantially hexagonal cross section.
the coupling device may further comprise locking means, said locking means being movable between a first state in which relative rotation between the first part of the retaining part and the second part of the retaining part is allowed, and a second state in which such relative movement is prevented.
the locking means may advantageously be in the first state during mounting of a fibre band in the retaining part and during tightening of the fibre band. Once the fibre band has been mounted and tightened properly, the locking means is moved to the second state, thereby preventing relative rotation between the first part and the second part of the retaining part. Accordingly, the tightened fibre band is not allowed to unwind from the retaining part, i.e. the fibre band is maintained in the tightened state by the locking means.
the locking means may advantageously comprise a movable locking part, e.g. in the form of a separate part, such as a clamp or a split, which may be moved into engagement with the retaining part in a manner which locks the second part of the retaining part against rotation relative to the first part of the retaining part.
a locking part may have a geometry which matches a geometry of the second part, e.g. a protruding part formed on the locking part matching one or more openings formed in the second part, or two or more inner surfaces of the locking part matching two or more outer surfaces formed on the second part, etc.
such outer surfaces of the second part may, e.g., be surfaces defining a hexagonal cross section of the second part.
the locking means may comprise mating teeth or mating protrusions and recesses formed on the first part and the second part of the retaining part, respectively.
the locking means is in the second state when the first part and the second part of the retaining part are mutually arranged in such a manner that the mating teeth or the mating protrusion and recesses engage each other, thereby preventing relative rotation between the first part and the second part.
the locking means is in the first state when the first part and the second part of the retaining part are mutually arranged in such a manner that the mating teeth or the mating protrusions and recesses have been moved out of engagement.
the locking means may advantageously be moved between the first state and the second state by performing a substantially linear relative movement between the first part and the second part of the retaining part along a direction which substantially defined by a rotational axis of the relative rotational movement of the first part and the second part.
the locking means is preferably moved to the first state by moving the first part in a direction away from the second part and/or by moving the second part in a direction away from the first part
the locking means is moved to the second state by moving the first part in a direction towards the second part and/or by moving the second part in a direction towards the first part.
a locking member may, in this case, be used for retaining the first and second parts in the axial position there the teeth or protrusions/recesses engage, thereby preventing that the teeth or protrusions/recesses are accidentally moved out of engagement.
the tightening means may form part of other parts of the coupling device.
the tightening means may comprise a screw and bolt connection arranged along a direction defined by the length of a fibre band retained by the retaining part of the coupling device. Thereby the distance between the bolt and a head of the screw is changed as the bolt is rotated along the thread of the screw. Thereby the fibre band can be tightened.
the retaining part may comprise two oppositely arranged parts adapted to receive an end part of a fibre band there between.
the fibre band is retained by the two oppositely arranged parts squeezing the fibre band, i.e. the fibre band is retained at least partly due to the friction between each of the two oppositely arranged parts and the fibre band.
the oppositely arranged parts may, e.g., be in the form of plate elements.
the plate elements may have substantially planar surfaces facing each other. Alternatively, the plate elements may have matching wavy surfaces in order to increase the friction between the plate elements and the fibre band.
a suitable glue or adhesive may be applied between one or both of the oppositely arranged parts and the fibre band in order to increase the friction there between.
bolts, screws or the like may be applied for pressing the two oppositely arranged parts towards each other and maintain the parts in this position.
the connecting part and the retaining part may be pivotally connected to each other.
a fibre band which is retained by the retaining part is allowed to perform pivotal movements relative to the connecting part, and thereby relative to a building construction to which the connecting part is connected. Since buildings are not identical, it must be possible to adjust a wind bracing system to fit in a specific part of a given building. For instance, in the case that the wind bracing system is to be mounted diagonally between two rafters of a roof construction, the angle defined between one rafter and a fibre band retained by the coupling device is defined inter alia by the distance between the two rafters and the difference in height between the mounting positions on the rafters. These distances, and thereby the angle, depend on the design of the roof construction, and it is therefore necessary that the angle is adjustable. This is obtained by the pivotal connection between the connecting part and the retaining part.
pivotal movement of a retained fibre band may be inherently provided by the coupling device.
the retaining part comprises a first part forming part of or being fixed to the connecting part and a second part arranged rotatably relative to the first part.
the second part may be arranged in such a manner relative to the connecting part that the angle between a rafter to which the connecting part is connected and a fibre band retained by the retaining part can be adjusted by rotating the fibre band around the axis of rotation of the second part.
the coupling device may be adapted for coupling a band of substantially continuous carbon fibres to a building construction.
carbon fibres are very suitable for use as a stabilizing element of a wind bracing system, since carbon fibres possess the required properties with respect to strength and stability, while having low weight.
the coupling device may further comprise a fibre band, such as a carbon fibre band, mounted in and retained by the retaining part.
a fibre band such as a carbon fibre band
the invention provides a wind bracing system for a building construction, the wind bracing system comprising:
a wind bracing system is a construction which provides stability to a building construction, e.g. a roof construction.
the wind bracing system according to the second aspect of the invention comprises a fibre band which is coupled between two parts of the building construction by means a first and a second coupling device. Accordingly, the fibre band forms a stabilizing element of the wind bracing system.
the weight of a fibre band is significantly lower than the weight of a corresponding steel band, which is used in prior art wind bracing systems.
the fibre band does not have sharp edges, and the risk of injury to construction personnel is therefore minimised.
the fibre band possesses suitable properties with respect to strength and stability as described above, and it is therefore a desirable alternative to steel bands.
the first and/or the second coupling device retains an end of the fibre band at least partly by means of friction.
this is an advantage because it allows a bundle of individual and substantially continuous fibres to be coupled securely to a part of the building construction, e.g. a rafter, without damaging the fibres.
the fibre band may be made from substantially continuous carbon fibres. As described above, carbon fibres possess properties which make them suitable for use as a stabilizing element in a wind bracing system.
the fibre band may be made from polymer fibres, such as fibres of polypropylene or kevlar ® , silicon fibres, or any other suitable kind of fibres.
the fibre band may be enclosed by a wrapping, such as a plastic wrapping, in order to keep the bundle of fibre together, and in order to provide protection for the fibres.
the wrapping may be used for printing information, such as information regarding remaining amount of fibre band left in a roll, name and/or logo of the manufacturer, etc.
a plastic may be extruded along with the fibres, thereby forming a composite material comprising the fibres and the plastic material.
the first coupling device and/or the second coupling device may advantageously be a coupling device according to the first aspect of the invention.
the first coupling device and/or the second coupling device may comprise
the wind bracing system may further comprise means for tightening the fibre band. This allows the fibre band to be mounted on a building construction by means of the connecting parts, and subsequently tightened to obtain a wind bracing system with a required stability.
the tightening means may form part of the first coupling device and/or the second coupling device.
the tightening means may advantageously be implemented in the manner described above with reference to the first aspect of the invention.
the tightening means may form a separate part of the wind bracing system.
the first coupling device and the second coupling device may each be provided with a pivotal hinge allowing a retaining part retaining the end of the fibre band to perform pivotal movements relative to the building construction. Thereby an angle defined between a part of the building construction and the fibre band suspended between the two coupling devices is allowed to vary as described above.
the first and/or the second coupling device may form part of the building construction. This may, e.g., be obtained by drilling a hole in a rafter of the building construction and allow an end part of the fibre band to pass through the hole. Once the end part has passed through the hole, it is provided with a stopping element which prevents it from slipping back through the hole.
the stopping element may, e.g., merely be a knot tied on the fibre band or a bolt or a plate attached to the end of the fibre band, e.g. supplemented by glue or adhesive applied to the end part.
the wind bracing system may further comprise means for tightening the fibre band. This may, e.g., include tightening means as described above with reference to the first aspect of the invention.
Fig. 1 is a perspective view of a coupling device 1 according to a first embodiment of the invention.
the coupling device 1 comprises a connecting part 2 which is connected to a rafter 3, part of which is shown in Fig. 1 .
the rafter 3 forms part of a building construction, such as a roof construction of a building.
the coupling device 1 further comprises a retaining part 4 in the form of a roll 5 rotatably mounted in a holder part 6.
the retaining part 4 is adapted to retain an end part of a fibre band (not shown), thereby connecting the fibre band to the rafter 3.
the fibre band is attached to the retaining part 4 in the following manner. Initially an end part of the fibre band is introduced into slit 7. The roll 5 is then rotated, e.g. by means of a tool 8 until a desired amount of fibre band has been rolled around the roll 5. In some embodiments this may be achieved by rotating the roll 5 through three full turns.
the roll 5 may advantageously be rotated in such a manner that an end part of the fibre band extending entirely through the roll 5, i.e.
the fibre band is retained by means of a roll 5, because it is thereby avoided that the fibre band is subjected to sharp bends or kinks.
Some fibres, such as carbon fibres, tend to break if subjected to sharp bends or kinks, thereby potentially compromising the strength of the fibre band at the position of the connection. It is therefore very desirable to avoid sharp bends or kinks in order to ensure that a high strength of the fibre band is maintained along the entire length of the fibre band.
Fig. 2 is a perspective view of a part of a wind bracing system.
the system comprises two coupling devices 1 of the kind shown in Fig. 1 , each coupling device 1 being connected to a rafter 3 via a connecting part 2.
a fibre band 10, e.g. in the form of a carbon fibre band, is mounted between the coupling devices 1 in such a manner that one end of the fibre band 10 is retained by the retaining part 4 of one of the coupling devices 1 and the opposite end of the fibre band 10 is retained by the retaining part 4 of the other coupling device 1.
the retaining part 4 of one of the coupling devices 1 may further be used for tightening the fibre band 10.
the length of the fibre band 10 may be roughly adjusted to match the distance between the two coupling devices 1.
the other end of the fibre band 10 may then be introduced into the slit 7 of the roll 5 of the retaining part 4 of the other coupling device 1.
the roll 5 is rotated until the fibre band 10 has been tightened sufficiently to provide a desired stiffness of the wind bracing system. Finally the roll 5 is rotationally locked by means of locking member 9.
Fig. 3 is a view from above of the system of Fig. 2
Fig. 4 is a side view of the system of Fig. 2 .
Fig. 5 is a perspective view of a roll 5 which may be used in the coupling device 1 of Fig. 1 .
the roll 5 is provided with an enlarged head 11.
the enlarged head 11 is too large to pass the holder part 6, and abutment between the holder part 6 and the enlarged head may be used for fixing a relative position between the roll 5 and the holder part 6.
the enlarged head 11 has a substantially hexagonal shape allowing it to engage a tool 8 of the kind shown in Fig. 1 , and it may therefore further be used when the roll 5 is rotated as described above.
the roll 5 is further provided with four substantially planar surface parts 12, two of which are visible in Fig. 5 .
the locking member 9 shown in Fig. 1 is shaped in such a manner that it is able to engage two of the substantially planar surface parts 12, the two surface parts 12 being arranged opposite to each other.
the locking member 9 is positioned as shown in Fig. 1 , engaging two oppositely arranged substantially planar surface parts 12 of the roll 5, the roll 5 is prevented from rotating relative to the holder part 6.
the mutual angular position between the roll 5 and the holder part 6 must be such that the locking member 9 engages two of the substantially planar surface parts 12 when it slides into the position shown in Fig. 1 . This is possible in four mutual angular positions, equally distributed at 90° intervals.
the roll 5 is further provided with two slits 7, one of which is visible.
the slits 7 are slightly tapered, thereby facilitating positioning of an end part of a fibre band 10 in one of the slits 7.
Fig. 6 is an end view of the roll 5 of Fig. 5 .
the hexagonal shape of the enlarged head 11 is clearly visible.
Fig. 7 is a side view of the roll 5 of Fig. 5
Fig. 8 is a cross sectional view of the roll 5 of Fig. 5 , along the line A-A shown in Fig. 7 .
the tapered shape of the slits 7 is clearly visible.
Fig. 9 is a perspective view of a coupling device 1 according to a second embodiment of the invention.
the coupling device of Fig. 9 is very similar to the coupling device 1 of Fig. 1 , and it will therefore not be described in further detail here.
the roll 5 has a substantially hexagonal cross sectional shape, i.e. the roll 5 in itself defines six substantially planar surface parts which may pair-wise engage the locking member 9. Accordingly, six mutual angular positions between the roll 5 and the holder part 6 exist in which the locking member 9 may engage two oppositely arranged surface parts, thereby locking the roll 5 against rotational movements relative to the holder part 6.
the hexagonal shape ensures that the angle defined between two neighbouring surface parts is sufficiently large to avoid sharp bends or kinks of the fibre band.
Figs. 10-12 correspond to Figs. 2-4 and illustrate two coupling devices 1 of the kind shown in Fig. 9 , mounted on two rafters 3 with a fibre band 10 there between.
Fig. 13 is a perspective view of a coupling device 1 according to a third embodiment of the invention.
the coupling device 1 comprises a connecting part 2 connected to a rafter 3, part of which is visible, and a retaining part 4 adapted to retain an end part of a fibre band (not shown).
the retaining part 4 comprises a roll 5 and a holder part 6, and a fibre band is retained by the retaining part 4 substantially as described above with reference to Fig. 1 .
a locking member 9 for rotationally locking the roll 5 to the holder part 6 is visible.
the connecting part 2 and the retaining part 4 are connected via a hinge 13 allowing mutual pivotal movements between the connecting part 2 and the retaining part 4. This will be described in further detail below with reference to Fig. 14 .
Fig. 14 is a perspective view of a part of a wind bracing system comprising two coupling devices 1 of the kind shown in Fig. 13 .
a fibre band 10 e.g. a carbon fibre band
part of the fibre band 10 is not shown, thereby indicating that the distance between the coupling devices 1 may be larger than shown in the Figure.
Figs. 15-18 illustrate a retaining part 4 for a coupling device according to a fourth embodiment of the invention.
the retaining part 4 comprises two plates 14 arranged substantially in parallel opposite to each other.
a fibre band 10 is arranged between the plates 14, and the plates 14 are squeezed together by means of bolt 15. Accordingly, the fibre band 10 is retained by the retaining part 4 due to friction between the fibre band 10 and the plates 14.
a suitable glue may additionally be applied between the fibre band 10 and one or both of the plates 14.
connection plate 16 is further arranged between the plates 14.
the connection plate 16 may be used for establishing a connection between the retaining part 4 and a connecting part 2.
Fig. 19 shows a coupling device 1 according to the fourth embodiment of the invention, i.e. comprising a retaining part 4 of the kind shown in Figs. 15-18 .
the connecting plate 16 is coupled to a connecting part 2 via hinges 13.
the connecting part 2 may be connected to a rafter (not shown).
the hinges 13 allow the angle between a rafter and the fibre band 10 to be varied as described above.
Fig. 20 is a perspective view of a coupling device 1 according to a fifth embodiment of the invention
Fig. 21 is an exploded view of the coupling device 1 of Fig. 20
the coupling device 1 of Figs. 20 and 21 is similar to the embodiments illustrated in Figs. 1 , 9 and 13 , in that the retaining part 4 comprises a roll 5 and a holder part 6. However, in the embodiment shown in Figs.
the holder part 6 is provided with six bent teeth 17 forming recesses between them, and the roll 5 is provided with seven teeth 18 being sized and shaped to fit in the recesses formed between the bent teeth 17 of the holder part 6, and forming recesses between them which are sized and shaped to receive the bent teeth 17.
the teeth 17, 18 may be moved into and out of engagement, thereby preventing or allowing relative rotational movement of the roll 5 and the holder part 6.
Locking member 9 can be mounted on the roll 5 in order to retain the roll 5 in the axial position where the teeth 17, 18 engage, thereby preventing that the teeth 17, 18 are accidentally moved out of engagement.
the teeth 17, 18 are in the engaging position, and in Fig 21 they are not engaging.
Hinge 13 allows mutual pivotal movements between the connecting part 2 and the retaining part 4 as described above with reference to Figs. 13 and 14 .
Tightening arrangement 19 is used when tightening the fibre band 10 when a wind bracing system comprising the coupling device 1 is mounted on a building construction. This will be described in further detail below.
Fig. 22 is a perspective view of a wind bracing system.
the wind bracing system comprises two coupling devices 1, each retaining an end part of a fibre band 1, e.g. in the form of a carbon fibre band, by means of a retaining part 4, and each being connected to a rafter 3 forming part of a building construction, via a connecting part 2.
the coupling device 1 shown to the right is of the kind shown in Figs. 20 and 21 .
the coupling device 1 shown to the left is very similar to the one shown in Figs. 20 and 21 , but the tightening arrangement 19 has been omitted.
the wind bracing system of Fig. 22 is preferably mounted on a building construction in the following manner. Initially an end part of the fibre band 10 is mounted on each of the rolls 5, e.g. as described above with reference to Fig. 1 , and the connecting parts 2 are mounted on the rafters 3. The rolls 5 are then positioned in the holding parts 6 in such a manner that the teeth 17, 18 are not engaging, and the rolls 5 are thereby allowed to perform rotational movements relative to the holding parts 6. An initial tightening of the fibre band 10 is then performed by rotating the rolls 5 relatively to the holding parts 6, possibly using a tool.
Fig. 23 shows a wind bracing system mounted on a building construction 20.
the building construction 20 is shown from above (top) and in a side view (bottom).
the wind bracing system is mounted on the roof construction 21, and it includes fibre bands 10 coupled to rafters 3 of the roof construction 21 by means of coupling devices according to the invention, e.g. according to one of the embodiments described above with reference to Figs. 1-22 .
a first set of fibre bands 10a is arranged diagonally relative to a ground-plan of the building 20 and substantially parallel to the ground-plan, i.e. in a substantially horizontal plane.
a second set of fibre bands 10b is arranged in such a manner that an angle is defined between a horizontal plane and the fibre bands 10b.
a third set of fibre bands 10c is arranged along the wall of the building construction 20. These fibre bands 10c are connection to a part of the foundation of the building construction 20 and to the roof construction 21. At least the connections of the fibre bands 10c to the roof construction 21 may be obtained by means of coupling devices according to the invention.

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Architecture (AREA)
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Joining Of Building Structures In Genera (AREA)

EP10167141A 2009-07-01 2010-06-24 Bande de renfort et élément de connexion Withdrawn EP2281965A2 (fr)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
DKPA200970052		2009-07-01

Publications (1)

Publication Number	Publication Date
EP2281965A2 true EP2281965A2 (fr)	2011-02-09

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Application Number	Title	Priority Date	Filing Date
EP10167141A Withdrawn EP2281965A2 (fr)	2009-07-01	2010-06-24	Bande de renfort et élément de connexion

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3812527A1 (fr) *	2019-10-21	2021-04-28	Illinois Tool Works INC.	Connecteur de bande d'attelle perforé et système de bande d'attelle
US20230128163A1 (en) *	2020-03-04	2023-04-27	Simpson Strong-Tie A/S	Wind Brace Tensioning Bracket and Tensioning System

2010
- 2010-06-24 EP EP10167141A patent/EP2281965A2/fr not_active Withdrawn

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
EP3812527A1 (fr) *	2019-10-21	2021-04-28	Illinois Tool Works INC.	Connecteur de bande d'attelle perforé et système de bande d'attelle
EP3812526A1 (fr) *	2019-10-21	2021-04-28	Illinois Tool Works, Inc.	Connecteur de bande d'attelle perforé et système de bande d'attelle
WO2021080805A1 (fr) *	2019-10-21	2021-04-29	Illinois Tool Works Inc.	Connecteur de bande de renfort perforé et système de bande de renfort
US20230128163A1 (en) *	2020-03-04	2023-04-27	Simpson Strong-Tie A/S	Wind Brace Tensioning Bracket and Tensioning System

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